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Finding the Fourth Proportional to 328,578.82, 453,439.26 and 177,675.82

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Solution

The fourth proportional to 328,578.82, 453,439.26 and 177,675.82 is: 245,192.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,578.82 : 453,439.26 = 177,675.82 : x
  2. Step 2: Convert to fraction form
    328,578.82/453,439.26 = 177,675.82/x
  3. Step 3: Cross multiply
    328,578.82x = 453,439.26 × 177,675.82
  4. Step 4: Simplify right side
    328,578.82x = 80,565,192,340.69
  5. Step 5: Solve for x
    x = 80,565,192,340.69/328,578.82
  6. Step 6: Final answer
    x = 245,192.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.